A soft metal or nonmetal sleeve, designed to mate with a pin-rivet. it may include an external wrenching facility which breaks off at a perdetermined torque to form a head.
NSN 5910-01-360-6092
NSN 5990-01-131-2008
NSN 6650-01-227-0439
NSN 5910-00-444-2221
NSN 6620-01-057-9621
NSN 5925-00-915-1204
NSN 6130-01-096-6692
NSN 5985-00-050-7465
NSN 6240-01-152-2662
NSN 5999-01-549-4795
NSN 5990-01-591-8797
NSN 5835-01-408-7576